20216794900

素因数分解:

$2^2\times 5^2\times {\mathrm{239}}^1\times {\mathrm{293}}^1\times {\mathrm{2887}}^1$

素因数の和:3433

約数の個数: 72

約数和(自身を含む): 44219669760

約数和(自身を除く): 24002874860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 239, 293, 478, 586, 956, 1172, 1195, 1465, 2390, 2887, 2930, 4780, 5774, 5860, 5975, 7325, 11548, 11950, 14435, 14650, 23900, 28870, 29300, 57740, 70027, 72175, 140054, 144350, 280108, 288700, 350135, 689993, 700270, 845891, 1379986, 1400540, 1691782, 1750675, 2759972, 3383564, 3449965, 3501350, 4229455, 6899930, 7002700, 8458910, 13799860, 16917820, 17249825, 21147275, 34499650, 42294550, 68999300, 84589100, 202167949, 404335898, 808671796, 1010839745, 2021679490, 4043358980, 5054198725, 10108397450, 20216794900]

約数ペア:

[(1, 20216794900), (2, 10108397450), (4, 5054198725), (5, 4043358980), (10, 2021679490), (20, 1010839745), (25, 808671796), (50, 404335898), (100, 202167949), (239, 84589100), (293, 68999300), (478, 42294550), (586, 34499650), (956, 21147275), (1172, 17249825), (1195, 16917820), (1465, 13799860), (2390, 8458910), (2887, 7002700), (2930, 6899930), (4780, 4229455), (5774, 3501350), (5860, 3449965), (5975, 3383564), (7325, 2759972), (11548, 1750675), (11950, 1691782), (14435, 1400540), (14650, 1379986), (23900, 845891), (28870, 700270), (29300, 689993), (57740, 350135), (70027, 288700), (72175, 280108), (140054, 144350)]